Electronic properties of lithium-ion battery cathodes studied in ion-gated transistor configuration

A study of the doping process in Li4Ti5O12 and TiO2 battery electrode materials studied in the ion-gated transistor configuration

“…We observed changes in the electronic conductivity, disentangled from ionic conductivity, of LiNi 0.5 Mn 0.3 Co 0.2 O 2 (NMC532)- and LiNi 1.5 Mn 0.5 O 4 (LNMO)-based cathode materials with the degree of delithiation. 3…”

“…We observed changes in the electronic conductivity, disentangled from ionic conductivity, of LiNi 0.5 Mn 0.3 Co 0.2 O 2 (NMC532)-and LiNi 1.5 Mn 0.5 -O 4 (LNMO)-based cathode materials with the degree of delithiation. 3 In the field of LIBs, lithium titanate (Li 4 Ti 5 O 12 , LTO) is considered as an anode material (specific capacity 175 mA h g À1 ). 4,5 It features zero-strain upon Li + insertion, since the spinel structure of LTO undergoes a transition to the Li 7 Ti 5 O 12 rock-salt structure with minimum expansion; the formation of its Solid-Electrolyte-Interphases (SEIs) is the object of investigations.…”